Having tattoos and piercings is not unprofessional. What’s unprofessional is turning down an aspiring employee due to superficial reasons and not their skill level or experience
A good laugh and a long sleep are the two best cures for anything.
My father had taught me to be nice first, because you can always be mean later, but once you’ve been mean to someone, they won’t believe the nice anymore. So be nice, be nice, until it’s time to stop being nice, then destroy them.